Massage roller



FIG. 1 is a perspective view of a massage roller having a wide ridge extending around at least a portion of a circumference of the massage roller;

FIG. 2 is a front view of the massage roller shown in FIG. 1;

FIG. 3 is a top view of the massage roller shown in FIG. 2; and,

FIG. 4 is a bottom view of the massage roller shown in FIG. 3.

The broken lines in the drawings are for the purpose of illustrating portions of the massage roller which form no part of the claimed design. 

CLAIM The ornamental design for a massage roller, as shown and described. 